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A feldspathoid silica-undersaturated aluminosilicate mineral.
| Minerals |
Leucite
Hardness: 5.5-6 Density: 2.5 K2O 21.50%, Al2O3 23.50%, SiO2 55% An alumino-silicate common to gr |
| Materials |
Nepheline Syenite
|
| URLs |
http://en.wikipedia.org/wiki/Nepheline
Nepheline at Wikipedia |
| URLs |
http://www.handbookofmineralogy.org/pdfs/Nepheline.pdf
Nepheline mineralogy |
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